API & MCP

Everything a person can do on Deckwright, a program or AI agent can do with the same inputs and get the identical result.

HTTP API

• GET https://deckwright.usefulweb.app/api/v1/tools – catalog
• GET https://deckwright.usefulweb.app/api/v1/tools/{id} – inputs, output schema, examples
• POST https://deckwright.usefulweb.app/api/v1/tools/{id}/calculate – run a tool
• GET https://deckwright.usefulweb.app/api/v1/workflows · POST https://deckwright.usefulweb.app/api/v1/workflows/{id}/run
• OpenAPI 3.1: /openapi.json · /openapi.yaml
• Errors: application/problem+json; 422 includes per-field errors.

Tools on Deckwright

• Markdown to Slides (PDF and HTML) – Turn Markdown into a clean slide deck — PDF with embedded fonts and a single-file HTML presentation. deckwright_markdown_to_deck
• Markdown to PowerPoint (PPTX) – Editable PowerPoint from Markdown: real titles, bullets, tables, speaker notes and alt text. deckwright_pptx_export
• Slide Deck Accessibility Checker – Check a Markdown slide deck: contrast, slide titles, alt text, reading order and text size. deckwright_deck_a11y_check
• Diagram & Flowchart Maker – Write flowcharts, sequence diagrams and mind maps as text and get a laid-out SVG/PNG diagram. diagram_flowchart_maker
• CSV/Excel Chart Studio – Turn CSV, TSV or Excel data into line, bar, pie, scatter or histogram charts with SVG/PNG export. csv_excel_chart_studio

Every result contains

inputs (normalised, defaults applied), summary, result (validated against the published schema), units, assumptions, sources, warnings, computedAt and links.

MCP (Model Context Protocol)

• Streamable HTTP endpoint: https://deckwright.usefulweb.app/mcp – protocol revisions 2026-07-28 (stateless) and 2025-11-25 / 2025-06-18 / 2025-03-26 (initialize handshake).
• Tools: deckwright_markdown_to_deck, deckwright_pptx_export, deckwright_deck_a11y_check, diagram_flowchart_maker, csv_excel_chart_studio
• Local stdio connector: node src/mcp-stdio.ts

{
  "mcpServers": {
    "usefulweb": { "type": "http", "url": "https://deckwright.usefulweb.app/mcp" }
  }
}